442 SKULLS OF WESTERN AFRICANS. App. I. 



narrow, and sinks anteriorly into a post-sqnamosal 

 pit. The sagittal suture is crenulate, but narrower 

 than the lambdoid, where it leaves that suture ; it 

 then becomes crenate,* again crenulate, but contracts 

 to a wavy linear condition as it approaches the co- 

 ronal. This is a minutely wavy line for about an 

 inch and a half from the sagittal, then becomes finely 

 crenulate and broader until about an inch from the 

 alisphenoid, where it is crenate, and then again linear 

 and wavy. A mere point of the upper and hinder 

 angle of the alisphenoid joins the parietal, conse- 

 quently there is no " spheno-parietal " suture. The 

 spheno-frontal suture — the left ten lines, the right 

 eleven lines in length — is linear, almost straight, 

 slightly squamous. The squamo-parietal suture is, 

 as usual, squamous ; the squamo-sphenoid is a linear 

 harmonia, such also is the spheno-malar suture. The 

 fronto-malar is continued forward from the spheno- 

 frontal suture. The " upper curved ridge " of the 

 super-occipital is well defined, but without a median 

 occipital prominence ; the more feeble lower curved 

 ridge terminates above the persistent parts of the 

 super-ex-occipital sutures. The par-occipital ridges 

 are moderately developed. The supra-mastoid ridges f 

 are well defined through the depth of the supra-mas- 

 toid groove running from the supra-mastoid or post- 



* By " crpnate" I mean where the waves, or angles, or " denticulations" of 

 the sill aval margin do not send off sccmdary waves or angles; in which 

 case I use the term " orenalale." The bieadth of the suture is the extent 

 across which the waves or an;^le8 interlock. 



f 'Descriptive Catalogue of the Osteological Series, Museum, Royal 

 College of Surgeons,' 4to., 1853, p. S'25, et seq. Syn : " back ward exten- 

 sion of the posterior rout of the zygomatic process" in anthropotomy ; 

 Sharpey's ' Quain's Anatomy,' ed. 18B4, vol. i., j). 36. 



